Phoronix published AMD Threadripper 2990WX Cooling Performance - Testing Five Heatsinks & Two Water Coolers A quote from the article:

The 32-core / 64-thread AMD Threadripper 2990WX carries a 250 Watt TDP rating, thus the cooling performance is quite important especially if you don't want to hit any thermal throttling with this $1799 USD processor. Fortunately, the 2990WX doesn't require water cooling but actually can work quite well with high-end air heatsinks too. For adding some perspective on the cooling requirements of the Threadripper 2990WX, here are benchmarks of five heatsinks and two all-in-one water cooling systems.

 AMD Threadripper 2990WX Cooling Performance - Testing Five Heatsinks & Two Water Coolers